Add a driver for panels using the Himax HX83121A Display Driver IC,
including support for the BOE/CSOT PPC357DB1-4, found in HUAWEI
Matebook E Go series (Gaokun2/3).

Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
---
base-commit: d517cb8cea012f43b069617fc8179b45404f8018
---
Changes in v3:
- remove '|' from description (Krzysztof)
- drop description for reset-gpios (Krzysztof)
- use backlight_enable instead of backlight_update_status to avoid NULL ptr
- Link to v2: https://lore.kernel.org/dri-devel/20260305084810.370024-1-mitltlatltl@gmail.com

Changes in v2:
- fix dt_binding_check (Rob)
- use devm_drm_panel_alloc (Neil)
- move panels specific chunks before module probe function. (Neil)
- fix supply in .c file
- do not initialise statics to false
- Link to v1: https://lore.kernel.org/dri-devel/20260303115730.9580-1-mitltlatltl@gmail.com

Pengyu Luo (2):
  dt-bindings: display: panel: Add Himax HX83121A
  drm/panel: Add Himax HX83121A panel driver

 .../display/panel/himax,hx83121a.yaml         |  86 ++
 drivers/gpu/drm/panel/Kconfig                 |  11 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 drivers/gpu/drm/panel/panel-himax-hx83121a.c  | 750 ++++++++++++++++++
 4 files changed, 848 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/himax,hx83121a.yaml
 create mode 100644 drivers/gpu/drm/panel/panel-himax-hx83121a.c

-- 
2.53.0

On Sun, Mar 15, 2026 at 10:45:34PM +0800, Pengyu Luo wrote:
> Add a driver for panels using the Himax HX83121A Display Driver IC,
> including support for the BOE/CSOT PPC357DB1-4, found in HUAWEI
> Matebook E Go series (Gaokun2/3).
> 
> Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
> ---
> base-commit: d517cb8cea012f43b069617fc8179b45404f8018
> ---
> Changes in v3:
> - remove '|' from description (Krzysztof)
> - drop description for reset-gpios (Krzysztof)

You made multuple other changes effectively breaking your binding, so it
does not even pass tests.

Best regards,
Krzysztof